C 26 ] 
1 820. 
Thermometer 
without. 
Thermometer 
within. 
Barometer. 
* 
Six’s Thermometer. 
Rain.t 
Greatest 
height. 
Least 
height. 
Mean 
height. 
Greatest 
height. 
Least 
height 
Mean 
height. 
Greatest 
height. 
Least 
height. 
Mean 
height. 
Greatest 
height. 
1 Least 
| height. 
Mean 
height . 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Deg. 
Inches. 
Inches. 
Inches. 
Deg. 
Deg. 
Deg. 
Inches. 
January 
48 
*9 
33-5 
57 
3 1 
44’ 4 
30,68 
28,84 
29,87 
53 
20 
34 - * 
0,444 
February 
5 ° 
27 
39 ’* 
59 
40 
49,6 
30,32 
28,38 
29,95 
52 
26 
39 - 1 
1,425 
March 
64 
28 
43 -* 
67 
43 
52,9 
30,36 
28,93 
VO 
00 
00 
66 
28 
43-3 
1-325 
April 
67 
37 
52,2 
67 
53 
58,6 
30,5° 
29,23 
29,92 
69 
36 
52,2 
*• 5*4 
May 
6 3 
45 
55 >i 
7 i 
5 ° 
59-9 
30,31 
29,17 
29,65 
70 
39 
55-5 
*-393 
June 
84 
5 ° 
5 9 - 8 
79 
55 
61,4 
30,38 
2 9>54 
29-93 
85 
45 
59-4 
2 - 33 * 
July 
75 
53 
62,5 
77 
60 
64,2 
30,22 
29-35 
29-93 
80 
5 ° 
62,5 
00 
0 
NJ 
August 
73 
5 i 
62,5 
75 
59 
66, 2 
30,26 
29,48 
29,98 
77 
46 
61,0 
*-315 
September 
7 * 
4 i 
57 >° 
74 
53 
62,0 
3°-35 
29,41 
29,98 
73 
38 
56,9 
2,058 
October 
64 
40 
49-5 
61 
49 
55-5 
3°-53 
28,71 
29-67 
65 
39 
49-8 
1,582 
November 
55 
3 i 
43>4 
61 
46 
54-2 
30,27 
29-33 
29,84 
5 6 
31 
43-9 
1,000 
December 
55 
25 
4*-3 
59 
38 
5 G 2 
3°-34 
29,49 
29,94 
57 
25 
4 i -9 
1,187 
Whole year 
49-9 
56,7 
29,88 
50,0 
18,381 
* The quicksilver in the bason of the barometer, is ( 8 1 feet above the level 
of low water spring tides at Somerset-house. 
f The Society’s Rain Gage is 114 feet above the same level, and 75 feet 
6 inches above the surrounding ground. 
